MIchaĺ, The documentation in the developer version or the current version ( https://www.dealii.org/developer/doxygen/deal.II/classPreconditionChebyshev.html) says: "[...] Note that if the degree variable is set to one, the Chebyshev iteration corresponds to a Jacobi preconditioner (or the underlying preconditioner type) with relaxation parameter according to the specified smoothing range. [...]" and the assertion is at line 2211 only in the developer version. The text you are referring to can be found in version 9.0.0.
Best, Daniel Am Sa., 12. Okt. 2019 um 08:06 Uhr schrieb Michał Wichrowski < mtwichrow...@gmail.com>: > Dear all, > The documentation of Chebyshev precondition says that: > > "Note that if the degree variable is set to *zero*, the Chebyshev > iteration corresponds to a Jacobi preconditioner" > > while actually setting degree to 0 triggers Assertion at line 2211 of > precondition.h. Moreover, the PreconditionChebyshev works well with > degree=0 in release mode, so I think removing assetion will resolve the > problem. > > If Chebyshev preconditioner is not intended to be used with 0th degree > this should be added to documentation (and documentation in current form is > missleading) > > Best, > MIchaĺ > > -- > The deal.II project is located at http://www.dealii.org/ > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to dealii+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dealii/052f0208-e7b2-41aa-8876-c0df06ca4a92%40googlegroups.com > <https://groups.google.com/d/msgid/dealii/052f0208-e7b2-41aa-8876-c0df06ca4a92%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CAOYDWbKQb%3Dj3UXci9B9-xY5GLm_LkbAGEZ_Lz85e8yu1WkirKA%40mail.gmail.com.
